C#压缩JSON数据的技巧

在C#中压缩JSON数据可以使用GZipStream类。以下是一个示例代码：

using System;using System.IO;using System.IO.Compression;using System.Text;public class JsonCompression{    public static string Compress(string json)    {        byte[] buffer = Encoding.UTF8.GetBytes(json);        using (MemoryStream ms = new MemoryStream())        {            using (GZipStream zip = new GZipStream(ms, CompressionMode.Compress, true))            {                zip.Write(buffer, 0, buffer.Length);            }            ms.Position = 0;            byte[] compressed = new byte[ms.Length];            ms.Read(compressed, 0, compressed.Length);            byte[] gzBuffer = new byte[compressed.Length + 4];            System.Buffer.BlockCopy(compressed, 0, gzBuffer, 4, compressed.Length);            System.Buffer.BlockCopy(BitConverter.GetBytes(buffer.Length), 0, gzBuffer, 0, 4);            return Convert.ToBase64String(gzBuffer);        }    }    public static string Decompress(string compressedJson)    {        byte[] gzBuffer = Convert.FromBase64String(compressedJson);        using (MemoryStream ms = new MemoryStream())        {            int msgLength = BitConverter.ToInt32(gzBuffer, 0);            ms.Write(gzBuffer, 4, gzBuffer.Length - 4);            byte[] buffer = new byte[msgLength];            ms.Position = 0;            using (GZipStream zip = new GZipStream(ms, CompressionMode.Decompress))            {                zip.Read(buffer, 0, buffer.Length);            }            return Encoding.UTF8.GetString(buffer);        }    }}

使用示例：

string json = "{\"name\": \"John\", \"age\": 30}";string compressedJson = JsonCompression.Compress(json);string decompressedJson = JsonCompression.Decompress(compressedJson);Console.WriteLine($"Original JSON: {json}");Console.WriteLine($"Compressed JSON: {compressedJson}");Console.WriteLine($"Decompressed JSON: {decompressedJson}");

在上面的示例中，Compress方法将JSON数据压缩成Base64字符串，而Decompress方法将压缩后的Base64字符串解压缩为原始JSON数据。